FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -A cluster, in the context of a hard disk, is a group of sectors within a disk and is the grouping by which disk files are organized. A cluster is larger than a sector, and most files fill many clusters of disk space. The hard drive is able to find all the clusters on a disk because each cluster possesses its own ID.

Detailed explanation-2: -A sector is the smallest physical storage unit on the disk, and on most file systems it is fixed at 512 bytes in size. A cluster can consist of one or more consecutive sectors – commonly, a cluster will have four or eight sectors.

Detailed explanation-3: -An industry group is a way of grouping individual companies or stocks based on common business lines. GICS categorizes stocks into 24 industry groups and 11 sectors. Market sectors are typically broader than industry groups, but some industry groups such as energy and utilities are also market sectors.

Detailed explanation-4: -/ˈklʌs·tər/ a group of similar things growing or held together, or a group of people or things that are close together: dense clusters of delicate pink blossoms.

Detailed explanation-5: -Explanation: The term “cluster” refers to the set of similar objects or items that differ significantly from the other available objects. In other words, we can understand clusters as making groups of objects that contain similar characteristics form all available objects. Therefore the correct answer is A.